Home / 2,669.12-3,682.92-1,621.04

Finding the Fourth Proportional to 2,669.12, 3,682.92 and 1,621.04

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Solution

The fourth proportional to 2,669.12, 3,682.92 and 1,621.04 is: 2,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.12 : 3,682.92 = 1,621.04 : x
  2. Step 2: Convert to fraction form
    2,669.12/3,682.92 = 1,621.04/x
  3. Step 3: Cross multiply
    2,669.12x = 3,682.92 × 1,621.04
  4. Step 4: Simplify right side
    2,669.12x = 5,970,160.64
  5. Step 5: Solve for x
    x = 5,970,160.64/2,669.12
  6. Step 6: Final answer
    x = 2,236.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.